console.log('4-MISOL NATIJASI ');

class CreatureFeed {
  feed() {
    return "feed";
  }
}
class Dogfood extends CreatureFeed {
  feed() {
    return "Bone";
  }
}
class Chikcenfood extends CreatureFeed {
  feed() {
    return "Grain";
  }
}
class Catfood extends CreatureFeed {
  feed() {
    return "Mouse and Milk";
  }
}
class Cowfood extends CreatureFeed {
  feed() {
    return "Grass";
  }
}
class Sheepfood extends CreatureFeed {
  feed() {
    return "Grass and corn";
  }
}
console.log("Dog eat: " + new Dogfood().feed());
console.log("Chikcen eat: " + new Chikcenfood().feed());
console.log("Cat eat and drink: " + new Catfood().feed());
console.log("Cow eat: " + new Cowfood().feed());
console.log("Sheep eat: " + new Sheepfood().feed());

function Animal(name, count, year) {
  this.name = name;
  this.count = count;
  this.year = year;
}
const dog = new Animal("dog", 6, 3);
const cat = new Animal("Cat", 3, 2);
console.log(dog);
console.log(cat);

const computer = {
  model: "Asus Tuf Gaming A15",
  price: "830$",
  count: 3,
};
function getInfo(computer) {
  return computer;
}
const s = getInfo(computer);
console.log(s);
// 2-usul
function Computer(model, price, count) {
  this.model = model;
  this.price = price;
  this.count = count;
  this.getInfo = function () {
    return `Model: ${this.model} , Price: ${price} , Count: ${count}`;
  };
}
const Asus = new Computer("Hp i513", "550$", 3);
console.log(Asus.getInfo());

function Checkinteger(number) {
  return number;
}
console.log(Number.isInteger(Checkinteger(5)));
console.log(Number.isInteger(Checkinteger(5.5)));

function ChangeText(text, target, replacement) {
  return text.split(target).join(replacement);  // split qirqish join qo'shish 
}
const natija = ChangeText("Assalomu alaykum", "al", "ok");
console.log(natija);

function calculateArea(yuza) {
  const area = this.length * this.width;
  return yuza + " " + area;
}
const rectangle1 = { length: 5, width: 10 };
const rectangle2 = { length: 7, width: 3 };
const r = calculateArea.call(rectangle1, "yuza");
console.log(r);

function calculateArea(yuza) {
  const area = this.length * this.width;
  return yuza + " " + area;
}
const rectangle1 = { length: 5, width: 10 };
const rectangle2 = { length: 7, width: 3 };
const r = calculateArea.apply(rectangle1, ["yuza"]);
console.log(r);

function calculateArea(yuza) {
  const area = this.length * this.width;
  return yuza + " " + area;
}
const rectangle1 = { length: 5, width: 10 };
const rectangle2 = { length: 7, width: 3 };
const r = calculateArea.bind(rectangle1);
console.log(r("yuza"));

function SplitText(text, split) {
  return text.split(split);
}
const natija = SplitText("Learning JavaScript is fun!", " ");
console.log(natija);

// 1
let mevalar = ["olma", "banan"];
mevalar.push("apelsin");
console.log(mevalar);
// 2
let ranglar = ["qizil", "yashil", "ko'k"];
let oxirgiRang = ranglar.pop();
console.log(oxirgiRang);
console.log(ranglar);
// 3
let avtomobillar = ["BMW", "Audi", "Mercedes"];
let birinchiAvto = avtomobillar.shift();
console.log(birinchiAvto); // "BMW"
console.log(avtomobillar); 
// 4
let shaharlar = ["Toshkent", "Samarqand"];
let qishloqlar = ["Chirchiq", "Angren"];
let barchaJoylar = shaharlar.concat(qishloqlar);
console.log(barchaJoylar); 
//  5
let yoshlar = [15, 18, 22, 17, 19];
let kattaYoshlar = yoshlar.filter((yosh) => yosh >= 18);
console.log(kattaYoshlar);
// 6
let sonlar = [2, 4, 6];
let kvadratlar = sonlar.map((son) => son * son);
console.log(kvadratlar);

// 1
let text2 = "Salom, Dunyo Salom";
console.log(text2.indexOf("Dunyo"));
console.log(text2.indexOf("Salom"));
console.log(text2.indexOf("Xayr")); // -1 (topilmasa -1 qaytaradi)
// 2
let text1 = "Salom, Dunyo Salom";
console.log(text1.lastIndexOf("Salom"));
console.log(text1.lastIndexOf("Dunyo"));
// 3
let text3 = "Salom, Dunyo";
console.log(text3.includes("Dunyo"));
console.log(text3.includes("Xayr"));
// 4
let text = "Salom, Dunyo Barcha";
let arr = text.split(", ");
console.log(arr);
// 5
let array = ["Salom", "Dunyo"];
console.log(array.join(" - "));